An Effective Investigation of Tidal Flat Sedimentation by Means of UAV and MASW

• WATABE Yoichi

  Port and Airport Research Institute

• SASSA Shinji

  Port and Airport Research Institute

Bibliographic Information

Other Title

• UAVとMASWを活用した効率的な干潟堆積土砂調査

Abstract

This study aims to develop a new technology in order to evaluate temporospatial geomorphology and outline of the sedimentation stratigraphy in a small intertidal flat. A small unmanned aerial vehicle (UAV) with a compact digital camera was applied to take aerial photographs in the intertidal flat. Because the water surface of the intertidal flat is tranquil, the waterline (water's edge) evaluated by aerial photograph taken from the UAV corresponds to a very precise contour of the intertidal flat. In addition, a geophysical exploration named as the multi-channel analysis of surface waves (MASW) was applied to investigate the sedimentation stratigraphy of the flat. The shear wave velocity structure obtained by MASW, corresponding to the stiffness distribution of the sediments, was consistent with the soil slices sampled by handy geo-slicer.

Journal

• Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)

  Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 65 (1), 1441-1445, 2009

  Japan Society of Civil Engineers

Keywords

• tidal flat
• remote sensing
• geophysical exploration
• MASW
• Geoslicer

Details

• CRID: 1390282680293588352
• NII Article ID: 130004956286
• DOI: 10.2208/kaigan.65.1441
• ISSN: 18838944
• ISSN: 18842399
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed